... :2000 1.brief description of self-aligning ball bearingSelf-aligning ball bearing has two kinds of structure: cylindrical ... :12xx,13xx,22xx,23xx4.Self-aligning Ball Bearing ApplicationSelf-aligning ball bearing is designed to withstand heavy ... in precision instruments, low noise machine, automobile, motorcycle, metallurgy, rolling mill, mining, petroleum, papermaking, cement, sugar industry, general ...